土中气 meaning in Chinese

air in soil

The thesis studies the theories of water vapor transfer in unsaturated soil , and gets the water contents equations of water vapor transfer in unsaturated soils
本论文进行了非饱和土气态水迁移的理论研究，得到非饱和土中气态水迁移引起的含水量变化方程。
Then this paper devises experiments to research on the laws of water vapor transfer in unsaturated soil , studies the amount of water vapor transfer under different water contents , different water content gradients , different densities , different transfer time and the difference between loess and sands , studies the ratio of water vapor transfer contrasting with admixture transfer , and which can make us judge the importance of water vapor transfer in unsaturated soils by intuition
进而论文设计试验研究了非饱和土中气态水迁移的规律，考查了不同含水量梯度、不同含水量水平、不同密实度、不同迁移时间以及非饱和砂土和黄土这两种不同土性条件下气态水迁移量的大小，以及在上述不同条件下气态水迁移量约占总混合迁移量的比例，使我们可以定性地判断出非饱和土中气态水迁移的重要性。